The adjustment of train arrival-departure tracks for high speed railways is an important part of railway station operation organization. Given the train delays caused by extreme weather and track faults, conflicts in operation plans of arrival-departure tracks occur sometimes. Therefore, a reasonable and efficient scheme for arrival-departure track adjustment needs to be formulated. In this study, by considering the delay tolerance of trains of different grades and the costs brought by adjusting arrival-departure tracks associated with track crossings, a mixed integer nonlinear programming model for arrival-departure track adjustment based on dual objective optimization was constructed to minimize the total weighted train delay time and the number of track crossings required for arrival-departure track adjustment. An augmented ε-constraint method was used to solve the model through a commercial solver CPLEX. By constructing a simulation example in a specific scenario, the non-dominant solution set of the model was obtained in a short time, and the whole Pareto frontier was formed. The results show that the dual objective optimization model for train arrival-departure track adjustment can provide diversified adjustment schemes for different application scenarios and improve the utilization effect of arrival-departure tracks.
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